Inventors:
Dane Clark Grenoble - Houston TX, US
Paul Bejerman Himelfarb - Leipzig, DE
Michael Norris Treybig - Houston TX, US
Brian Scott Vanderwilp - Katy TX, US
International Classification:
C07C 7/163
Abstract:
Disclosed is a process for the selective hydrogenation of diolefins and sulfur compounds that are contained in a pyrolysis gasoline feedstream. The process includes utilizing a single hydrotreating reaction stage by introducing the pyrolysis gasoline feedstock that includes a diolefin concentration and an organic sulfur concentration into a reactor that is loaded with a high activity hydrotreating catalyst and which is operated under selective hydrogenation conditions. A reactor effluent having a reduced diolefin concentration and a reduced organic sulfur concentration is yielded from the reactor and is separated into a portion that is recycled as a reactor feed. The remaining portion of the reactor effluent is passed downstream for further processing or handling.
